MATH Week 8 Final Exam 2024/2025
MATH Week 8 Final Examscored 128 out of 160= 80%
QUESTION 1
Of the following pairs of events, which pair has mutually exclusive events?
rolling a sum greater than 7 from two rolls of a standard die and rolling a 4 for the
first throw
drawing a 2 and drawing a 4 with replacement from a standard deck of cards rolling
a sum of 9 from two rolls of a standard die and rolling a 2 for the first roll drawing a
red card and then drawing a black card with replacement from a standard
deck of cards
QUESTION 2
Hugo averages 41 words per minute on a typing test with a standard deviation
of 7.5words per minute. Suppose Hugo's words per minute on a typing test are
normally distributed. Let X= the number of words per minute on a typing test.
Then, X∼N(41,7.5).
Suppose Hugo types 45 words per minute in a typing test on Wednesday. Thez-score
when x=45 is . This z-score tells you that x=45 is standard
deviations to the (right/left) of the mean, .
Correctly fill in the blanks in the statement above.
Select the correct answer below
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